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12353961239 = 12491989029
BaseRepresentation
bin10111000000101101…
…00111110100010111
31011212222011020212222
423200112213310113
5200300103224424
65401512132555
7615066636464
oct134026476427
934788136788
1012353961239
11526a541a24
12248939715b
13121b5a6a49
14852a3a66b
154c488ce5e
hex2e05a7d17

12353961239 has 4 divisors (see below), whose sum is σ = 12354962760. Its totient is φ = 12352959720.

The previous prime is 12353961229. The next prime is 12353961247. The reversal of 12353961239 is 93216935321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93216935321 = 311299732911.

It is a cyclic number.

It is not a de Polignac number, because 12353961239 - 24 = 12353961223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12353961239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12353961209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482024 + ... + 507005.

It is an arithmetic number, because the mean of its divisors is an integer number (3088740690).

Almost surely, 212353961239 is an apocalyptic number.

12353961239 is a deficient number, since it is larger than the sum of its proper divisors (1001521).

12353961239 is an equidigital number, since it uses as much as digits as its factorization.

12353961239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001520.

The product of its digits is 262440, while the sum is 44.

The spelling of 12353961239 in words is "twelve billion, three hundred fifty-three million, nine hundred sixty-one thousand, two hundred thirty-nine".

Divisors: 1 12491 989029 12353961239